ref: d9eeaec45f1f206922711c3dcd6787be15aaefe7
dir: /lib/c/include/errno.h/
#ifndef _ERRNO_H #define _ERRNO_H #define EDOM 1 #define EILSEQ 2 #define ERANGE 3 #define ENOMEM 4 #define EBADF 5 extern int errno; extern char *_sys_errlist[]; extern int _sys_nerr; #endif